Benzimidazole
CAS 51-17-2
EC 200-081-4
Formula C7H6N2
MW 118.14 g/mol
Heterocyclic Compounds Pharmaceuticals & HealthcareAgriculture & FeedBiotechnology & Life SciencesWater Treatment Preservation & BiocideCatalysis
Description
Benzimidazole (CAS 51-17-2, EC 200-081-4, formula C7H6N2) is a bicyclic organic compound also known as azindole, benzoglyoxaline, and 1,3-diazaindene. It carries no assigned E-code. The fused benzene-imidazole ring system gives it a stable aromatic structure that underpins its reactivity across multiple industrial sectors.
In pharmaceutical synthesis, benzimidazole serves as a core scaffold for active ingredients including antifungal and antiparasitic compounds, where the nitrogen atoms coordinate with biological targets to disrupt enzyme function. In water treatment and agricultural formulations, it acts as a biocide by interfering with microbial cell replication. It also functions as a catalyst or ligand in organometallic reactions.
Benzimidazole is supplied as a crystalline powder meeting pharmaceutical-grade specifications aligned with Ph.Eur. and REACH compliance requirements. It is available for procurement in standard laboratory quantities through to bulk industrial packaging. Buyers should confirm grade suitability and SDS documentation prior to ordering.
In pharmaceutical synthesis, benzimidazole serves as a core scaffold for active ingredients including antifungal and antiparasitic compounds, where the nitrogen atoms coordinate with biological targets to disrupt enzyme function. In water treatment and agricultural formulations, it acts as a biocide by interfering with microbial cell replication. It also functions as a catalyst or ligand in organometallic reactions.
Benzimidazole is supplied as a crystalline powder meeting pharmaceutical-grade specifications aligned with Ph.Eur. and REACH compliance requirements. It is available for procurement in standard laboratory quantities through to bulk industrial packaging. Buyers should confirm grade suitability and SDS documentation prior to ordering.
Physical Properties
| Melting Point | 170.5 °C |
| Boiling Point | >360 °C |
| Density | 1.227 g/cm³ |
| Flash Point | 360°C |
| Appearance | white crystals |
| Color | Beige to brown |
| Form | Crystalline Powder or Crystals |
| Water Solubility | sparingly soluble |
| Refractive Index | 1.5500 (estimate) |
| Log P | 1.320 |
Safety & Handling (Learn More)
Warning GHS07
H
H302
P
P264P270P330P501P301+P317
Trade & Regulatory
| HS Code | 29339990 |
| Storage Class | 11 - Combustible Solids |
| WGK (Germany) | 3 |
Other Names
1H-benzimidazoleAzindole3-AzaindoleBenziminazoleo-Benzimidazole1,3-DiazaindeneBenzoglyoxaline
Related Products
Derivatives
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